devs/foxbox
1
0
Fork 0
forked from len0rd/rockbox
Code Pull requests Activity

Fix compilation of the standalone test program.

Browse source 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@22064 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Mohamed Tarek 2009-07-27 11:28:14 +00:00
parent c6b1961d9d
commit c393b1dc5c
1 changed files with 41 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

42
apps/codecs/libcook/cook_fixpoint.h
View file

@ -35,10 +35,12 @@
* in C using two 32 bit integer multiplications.
*/
#ifdef ROCKBOX
/* get definitions of MULT31, MULT31_SHIFT15, CLIP_TO_15, vect_add, from codelib */
#include "asm_arm.h"
#include "asm_mcf5249.h"
#include "codeclib_misc.h"
#endif
/* The following table is taken from libavutil/mathematics.c */
const uint8_t ff_log2_tab[256] ={
@ -83,11 +85,34 @@ static inline FIXP fixp_pow2_neg(FIXP x, int i)
* @param a fix point value
* @param b fix point fraction, 0 <= b < 1
*/
#ifdef ROCKBOX
#define fixp_mult_su(x,y) (MULT31_SHIFT15(x,y))
#else
static inline FIXP fixp_mult_su(FIXP a, FIXPU b)
{
int32_t hb = (a >> 16) * b;
uint32_t lb = (a & 0xffff) * b;
return hb + (lb >> 16) + ((lb & 0x8000) >> 15);
}
#endif
/* Faster version of the above using 32x32=64 bit multiply */
#ifdef ROCKBOX
#define fixmul31(x,y) (MULT31(x,y))
#else
static inline int32_t fixmul31(int32_t x, int32_t y)
{
int64_t temp;
temp = x;
temp *= y;
temp >>= 31; //16+31-16 = 31 bits
return (int32_t)temp;
}
#endif
/* math functions taken from libavutil/common.h */
@ -241,6 +266,7 @@ static inline void imlt_math(COOKContext *q, FIXP *in)
static inline void overlap_math(COOKContext *q, int gain, FIXP buffer[])
{
int i;
#ifdef ROCKBOX
if(LIKELY(gain == 0))
{
vect_add(q->mono_mdct_output, buffer, q->samples_per_channel);
@ -255,6 +281,12 @@ static inline void overlap_math(COOKContext *q, int gain, FIXP buffer[])
(q->mono_mdct_output[i] >> -gain) + ((q->mono_mdct_output[i] >> (-gain-1)) & 1)+ buffer[i];
}
}
#else
for(i=0 ; i<q->samples_per_channel ; i++) {
q->mono_mdct_output[i] =
fixp_pow2(q->mono_mdct_output[i], gain) + buffer[i];
}
#endif
}
@ -320,6 +352,7 @@ static inline FIXP cplscale_math(FIXP x, int table, int i)
*/
static inline void output_math(COOKContext *q, register int16_t *out, int chan)
{
#ifdef ROCKBOX
register REAL_T * mono_output_ptr = q->mono_mdct_output;
register REAL_T * mono_output_end = mono_output_ptr + q->samples_per_channel;
out += chan;
@ -329,4 +362,11 @@ static inline void output_math(COOKContext *q, register int16_t *out, int chan)
*out = CLIP_TO_15(fixp_pow2_neg(*mono_output_ptr++, 11));
out += STEP;
}
#else
int j;
for (j = 0; j < q->samples_per_channel; j++) {
out[chan + q->nb_channels * j] =
av_clip(fixp_pow2(q->mono_mdct_output[j], -11), -32768, 32767);
}
#endif
}